cvh block
#41
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Any high performance build block should be sonic mapped. Only then will you know if you have a sturdy starting point. All cast blocks have core shift (when the block was cast). For low power use probably not worth measuring. However, for extreme power builds (two or 3 times the power over stock) one should sonic map and select a block to use with minimal core shift and thick major thrust wall.
#43
Ben
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That's all well and good if you have plenty to choose from, but they aren't exactly common place any more!
#45
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A sleeved down Zetec block may be an option. Darton sleeves can be custom ordered.
I believe minimum sleeve thickness is 2.5mm. Thet being said going from 85 or 86mm Zetec to a 80mm 1.6 should work well.
I am not sure how cost effective this would be?
Cheers
I believe minimum sleeve thickness is 2.5mm. Thet being said going from 85 or 86mm Zetec to a 80mm 1.6 should work well.
I am not sure how cost effective this would be?
Cheers
#58
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If need be I can thickness test it for you, or if you van get it done local post the measurements ,I'll measure richies block when*I get back off holiday it's a S2 and split from one end to the other and crack big enough to get you finger nail in lol
Last edited by crazycage; 04-10-2013 at 11:48 AM.
#59
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Export just the block - or block and crank? or block, crank and rods?
I assume purchasers in UK would want a cleaned and crack tested block.
Finding 1.9's is not too difficult. However, stripping them down, having blocks cleaned and crack tested starts to become costly.
A small container to ship to UK would have to be paid for too.
I am not sure UK persons would pay enough for 1.9 blocks to make it worthwhile (or even break even)
What would you pay for a bare 1.9 block?
Cheers
#60
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Im sure a tuner would buy say x 100 complete bottom ends and ship them. Then then could spec them to customers requirements and get their cut. You are happy, tuner happy, buyer happy - everyone's a winner baby!!! Lol
#61
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Complete used bottom ends?
How does one guarantee them to be defect free without taking them apart?
Or are you saying completed built bottom ends?
How does one guarantee them to be defect free without taking them apart?
Or are you saying completed built bottom ends?
#62
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No as in buy engines and throw away the split port heads!! Just have from the deck to the sump complete, so tuners can mess around with with a few test blocks...mess around with cranks, cut blocks up to measure bore thicknesses etc. then the rest can be built accordingly, knowing what 1.9 cvhs are all about!!
#64
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your dying to cut my engine into bits just to see whats happened in there
#66
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The 1.9 is not stronger than the 1.6. The 1.9 at stock bore size is stronger than a bored out 1.6.
I would say that a 1.6 (at standard bore) with the shorter cylinder wall height is stronger for big power. But the 1.9 would allow for lower boost to make the same power as a 1.6 so who knows which would work better? I still suspect a stock bore 1.6 being the best starting point for high boost.
I have never measured the cylinder wall thickness of a zetec - so no comment there.
With a zetec you have the option of a CGI block for big power builds. (these are rare as hens teeth).
I would say that a 1.6 (at standard bore) with the shorter cylinder wall height is stronger for big power. But the 1.9 would allow for lower boost to make the same power as a 1.6 so who knows which would work better? I still suspect a stock bore 1.6 being the best starting point for high boost.
I have never measured the cylinder wall thickness of a zetec - so no comment there.
With a zetec you have the option of a CGI block for big power builds. (these are rare as hens teeth).
#68
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Hello Crazy!
Did you measure major thrust, minor thrust and fore/aft?
Major thrust being left side of cylinder when looking at front of engine.(I am sure you already know this).
The 1.9 I measured (overbored 0.5mm) had 4.7 to 5.6mm thick major thrust
5.1 to 6.3mm minor thrust side.
Between the cylinder walls (non thrust) measured 3.4 to 4.0mm
I believe more room was left between cylinders for better water coolin
Did you measure major thrust, minor thrust and fore/aft?
Major thrust being left side of cylinder when looking at front of engine.(I am sure you already know this).
The 1.9 I measured (overbored 0.5mm) had 4.7 to 5.6mm thick major thrust
5.1 to 6.3mm minor thrust side.
Between the cylinder walls (non thrust) measured 3.4 to 4.0mm
I believe more room was left between cylinders for better water coolin
#72
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.
If the 1900cvh is an option why not use an 1800cvh block and crank. I have one an it's performed great. I did a bit of research a few years back and read that the 1800 is basically a 1900 with smaller bores (not 100% on this)
Ferriday engineering built mine and has loads of info on them.
Ginger
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If the 1900cvh is an option why not use an 1800cvh block and crank. I have one an it's performed great. I did a bit of research a few years back and read that the 1800 is basically a 1900 with smaller bores (not 100% on this)
Ferriday engineering built mine and has loads of info on them.
Ginger
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#73
Ben
#75
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The shorter cylinder wall of the shorter 1.6 block will be able to stand more abuse if cylinder wall thickness is similar.
A bored out 1.6 (+2mm overbore) is certainly weaker than standard bore 1.9.
#76
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Your rod broke first and destroyed the block as a result. Even CGI blocks will break when a connecting rod breaks.
#77
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yes im aware of that !!! I belive a big end bolt let go .the rod actually went through the block and sump and left parts all over the road "!!! ive owned 11 rs turbos and never had a 1.6 cvh do this full stop .only the 1900 so personally I wouldnt touch one myself.
my zvh has made over 300bhp scince 2006 with no issues at all with my favourite cvh head attached to it![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
what were the systems 2 power and engineering 1905 cc engines years ago ???????????
my zvh has made over 300bhp scince 2006 with no issues at all with my favourite cvh head attached to it
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
what were the systems 2 power and engineering 1905 cc engines years ago ???????????
Last edited by zvh; 19-10-2013 at 10:11 AM.
#78
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[QUOTE=zvh;6352539]yes im aware of that !!! I belive a big end bolt let go .the rod actually went through the block and sump and left parts all over the road "!!! ive owned 11 rs turbos and never had a 1.6 cvh do this full stop .only the 1900 so personally I wouldnt touch one myself.
my zvh has made over 300bhp scince 2006 with no issues at all with my favourite cvh head attached to it![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
what were the systems 2 power and engineering 1905 cc engines years ago ???????????[/QUOTE
I don't get your logic. You are aware that throwing a rod out of the side of a 1900 was not a result of a weak block. But you wouldn't touch a 1.9?
ZVH engines (same 88mm stroke as 1.9) use different connecting rods than the 1.9 tall block. Maybe (it is) the weak point in the 1.9 is the connecting rod/bolt. The longer stroke of the 1.9 would certainly make the bolt fail at a lower rpm than the 1.6 engines.
So - upgrade the connecting rods and pistons when using a 1.9 block. Steel rods and pistons are not that expensive these days.
my zvh has made over 300bhp scince 2006 with no issues at all with my favourite cvh head attached to it
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
what were the systems 2 power and engineering 1905 cc engines years ago ???????????[/QUOTE
I don't get your logic. You are aware that throwing a rod out of the side of a 1900 was not a result of a weak block. But you wouldn't touch a 1.9?
ZVH engines (same 88mm stroke as 1.9) use different connecting rods than the 1.9 tall block. Maybe (it is) the weak point in the 1.9 is the connecting rod/bolt. The longer stroke of the 1.9 would certainly make the bolt fail at a lower rpm than the 1.6 engines.
So - upgrade the connecting rods and pistons when using a 1.9 block. Steel rods and pistons are not that expensive these days.
Last edited by Canada1; 19-10-2013 at 06:52 PM.
#79
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well no why would I want to buy a 1.9?? when my zvh with arrows rods and arias pistons has run over 300bhp and 398 lbft scince 2006 >>>>I have no need to touch one im very happy with my zetec block that has lasted as a daily driver and is still spot on now . that's why I wouldn't touch another 1.9 or a 1.6 either I have no need to . and it seams to me no matte how much power you push from the 1.6 they never produce they same torque figures as the zvh any way